Products > Test Equipment
4 channel Keysight 1000x series scope
Mr. Scram:
--- Quote from: nctnico on December 29, 2018, 05:24:23 pm ---Which turns into 250kpts in a regular usage scenario with all channels on. I was hoping Keysight would finally see the light but I guess they are not. :'( IMHO Keysight makes great oscilloscopes but the memory is just too small.
--- End quote ---
I assume it's a limitation of the ASIC.
nctnico:
--- Quote from: Mr. Scram on December 29, 2018, 05:26:58 pm ---
--- Quote from: nctnico on December 29, 2018, 05:24:23 pm ---Which turns into 250kpts in a regular usage scenario with all channels on. I was hoping Keysight would finally see the light but I guess they are not. :'( IMHO Keysight makes great oscilloscopes but the memory is just too small.
--- End quote ---
I assume it's a limitation of the ASIC.
--- End quote ---
There probably is more memory in the ASIC but if Keysight enables that they'll eat into the higher end models. But still the ASIC is likely to be limited to 4Mpts (1MPts in real usage) so -sadly- that still is nothing compared to the competition.
TK:
--- Quote from: nctnico on December 29, 2018, 05:24:23 pm ---
--- Quote from: Carrington on December 29, 2018, 03:58:17 pm ---
--- Quote from: nctnico on December 29, 2018, 02:27:06 pm ---... I'm very curious to see whether Keysight has come up with something radically new (with more memory) which can stand up against the cheaper Chinese scopes or it is just meh.
--- End quote ---
Just 1Mpts!
--- End quote ---
Which turns into 250kpts in a regular usage scenario with all channels on. I was hoping Keysight would finally see the light but I guess they are not. :'( IMHO Keysight makes great oscilloscopes but the memory is just too small.
--- End quote ---
I am not completely sure but Keysight specifications are per channel. I assume it is 1Mpts per channel. On the 1000X series, it is 2GSa/s per channel with both channels active. If they added a second ASIC for the additional 2 channels, then probably they can maintain 2GSa/s per channel with all 4 channels active
nctnico:
AFAIK Keysight specs are always total memory shared by 2 channels and double buffering so the actual amount of memory available in run mode is 1/4 of the specified memory. Add digital channels to a model and you are left with 1/8. This information is usually in the fine print of the datasheet or user manual.
Mr. Scram:
--- Quote from: nctnico on December 29, 2018, 05:41:03 pm ---There probably is more memory in the ASIC but if Keysight enables that they'll eat into the higher end models. But still the ASIC is likely to be limited to 4Mpts (1MPts in real usage) so -sadly- that still is nothing compared to the competition.
--- End quote ---
To be fair, if I look at the responsiveness of the GUIs of the competition they're still miles ahead. Bigger numbers aren't everything. I'm not too impressed by the new Rigol, for example. It seems very laggy in comparison to the ASIC of the Keysight oscilloscopes.
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